2019-02-27 01:33:03

by Axel Lin

[permalink] [raw]
Subject: [PATCH] regulator: wm8400: Get rid of wm8400_block_read/wm8400_set_bits functions

The only user of wm8400_block_read/wm8400_set_bits functions is the
wm8400 regulator driver. At the context of all the callers, we can
use regmap_bulk_read/regmap_update_bits directly.
Thus remove wm8400_block_read/wm8400_set_bits functions.

Signed-off-by: Axel Lin <[email protected]>
---
drivers/mfd/wm8400-core.c | 6 ------
drivers/regulator/wm8400-regulator.c | 17 ++++++++---------
include/linux/mfd/wm8400-private.h | 8 --------
3 files changed, 8 insertions(+), 23 deletions(-)

diff --git a/drivers/mfd/wm8400-core.c b/drivers/mfd/wm8400-core.c
index 79756c83f5f0..cf067424a156 100644
--- a/drivers/mfd/wm8400-core.c
+++ b/drivers/mfd/wm8400-core.c
@@ -35,12 +35,6 @@ static bool wm8400_volatile(struct device *dev, unsigned int reg)
}
}

-int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data)
-{
- return regmap_bulk_read(wm8400->regmap, reg, data, count);
-}
-EXPORT_SYMBOL_GPL(wm8400_block_read);
-
static int wm8400_register_codec(struct wm8400 *wm8400)
{
const struct mfd_cell cell = {
diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
index fb1837657b64..40c4e6628471 100644
--- a/drivers/regulator/wm8400-regulator.c
+++ b/drivers/regulator/wm8400-regulator.c
@@ -36,13 +36,12 @@ static const struct regulator_ops wm8400_ldo_ops = {

static unsigned int wm8400_dcdc_get_mode(struct regulator_dev *dev)
{
- struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ struct regmap *rmap = rdev_get_regmap(dev);
int offset = (rdev_get_id(dev) - WM8400_DCDC1) * 2;
u16 data[2];
int ret;

- ret = wm8400_block_read(wm8400, WM8400_DCDC1_CONTROL_1 + offset, 2,
- data);
+ ret = regmap_bulk_read(rmap, WM8400_DCDC1_CONTROL_1 + offset, data, 2);
if (ret != 0)
return 0;

@@ -63,36 +62,36 @@ static unsigned int wm8400_dcdc_get_mode(struct regulator_dev *dev)

static int wm8400_dcdc_set_mode(struct regulator_dev *dev, unsigned int mode)
{
- struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ struct regmap *rmap = rdev_get_regmap(dev);
int offset = (rdev_get_id(dev) - WM8400_DCDC1) * 2;
int ret;

switch (mode) {
case REGULATOR_MODE_FAST:
/* Datasheet: active with force PWM */
- ret = wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_2 + offset,
+ ret = regmap_update_bits(rmap, WM8400_DCDC1_CONTROL_2 + offset,
WM8400_DC1_FRC_PWM, WM8400_DC1_FRC_PWM);
if (ret != 0)
return ret;

- return wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
+ return regmap_update_bits(rmap, WM8400_DCDC1_CONTROL_1 + offset,
WM8400_DC1_ACTIVE | WM8400_DC1_SLEEP,
WM8400_DC1_ACTIVE);

case REGULATOR_MODE_NORMAL:
/* Datasheet: active */
- ret = wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_2 + offset,
+ ret = regmap_update_bits(rmap, WM8400_DCDC1_CONTROL_2 + offset,
WM8400_DC1_FRC_PWM, 0);
if (ret != 0)
return ret;

- return wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
+ return regmap_update_bits(rmap, WM8400_DCDC1_CONTROL_1 + offset,
WM8400_DC1_ACTIVE | WM8400_DC1_SLEEP,
WM8400_DC1_ACTIVE);

case REGULATOR_MODE_IDLE:
/* Datasheet: standby */
- return wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
+ return regmap_update_bits(rmap, WM8400_DCDC1_CONTROL_1 + offset,
WM8400_DC1_ACTIVE | WM8400_DC1_SLEEP, 0);
default:
return -EINVAL;
diff --git a/include/linux/mfd/wm8400-private.h b/include/linux/mfd/wm8400-private.h
index 4ee908f5b834..43d0d307e2e3 100644
--- a/include/linux/mfd/wm8400-private.h
+++ b/include/linux/mfd/wm8400-private.h
@@ -923,12 +923,4 @@ struct wm8400 {
#define WM8400_LINE_CMP_VTHD_SHIFT 0 /* LINE_CMP_VTHD - [3:0] */
#define WM8400_LINE_CMP_VTHD_WIDTH 4 /* LINE_CMP_VTHD - [3:0] */

-int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data);
-
-static inline int wm8400_set_bits(struct wm8400 *wm8400, u8 reg,
- u16 mask, u16 val)
-{
- return regmap_update_bits(wm8400->regmap, reg, mask, val);
-}
-
#endif
--
2.17.1



2019-02-28 14:29:00

by Charles Keepax

[permalink] [raw]
Subject: Re: [PATCH] regulator: wm8400: Get rid of wm8400_block_read/wm8400_set_bits functions

On Wed, Feb 27, 2019 at 09:30:53AM +0800, Axel Lin wrote:
> The only user of wm8400_block_read/wm8400_set_bits functions is the
> wm8400 regulator driver. At the context of all the callers, we can
> use regmap_bulk_read/regmap_update_bits directly.
> Thus remove wm8400_block_read/wm8400_set_bits functions.
>
> Signed-off-by: Axel Lin <[email protected]>
> ---

Acked-by: Charles Keepax <[email protected]>

Thanks,
Charles

2019-04-02 04:04:14

by Lee Jones

[permalink] [raw]
Subject: Re: [PATCH] regulator: wm8400: Get rid of wm8400_block_read/wm8400_set_bits functions

On Wed, 27 Feb 2019, Axel Lin wrote:

> The only user of wm8400_block_read/wm8400_set_bits functions is the
> wm8400 regulator driver. At the context of all the callers, we can
> use regmap_bulk_read/regmap_update_bits directly.
> Thus remove wm8400_block_read/wm8400_set_bits functions.
>
> Signed-off-by: Axel Lin <[email protected]>
> ---
> drivers/mfd/wm8400-core.c | 6 ------

Acked-by: Lee Jones <[email protected]>

Mark, can you take this?

--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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